Carbon is the fourth most common chemical element in existence, after hydrogen, helium and oxygen. It forms literally millions of different compounds, including diamonds and graphite. Carbon is found in large quantities in the fossil fuels of coal, peat and oil.
Inorganic carbon compounds do not represent an environmental threat, but when carbon-rich compounds such as fossil fuels are burnt, they release carbon complexes such as carbon dioxide.
Carbon dioxide is found in abundance in the earth’s atmosphere. It is produced by animals as the exhalation of the respiration process, and consumed by plants for photosynthesis.
However excessive use of fossil fuels seems to be releasing large amounts of carbon dioxide and other complexes that can be harmful if they build up beyond normal levels. High levels of carbon compounds in the atmosphere trap the suns heat in much the same way as a greenhouse, hence the name greenhouse gases. Raising the earth’s temperature by a couple of degrees, as scientists now fear greenhouse gases will do, could have catastrophic environmental consequences.
The world therefore came together at Kyoto in an effort to reverse the trend of growing carbon emissions. It was felt that taxes or bans would not have the desired effect, and that a market-based system would spur great innovation in energy efficiency, developing alternative energy sources, and increasing the amount of carbon absorption using re-forestation and advanced technologies.
The carbon market approach is that of a cap-and-trade system.
The government or body running the carbon market will set an annual cap on the amount of emissions that participants such as industry and governmental bodies can cause.
If their emissions fall under the limit, then they are given credits that can be sold. Organisations who emit more than the cap will have to buy credits through the market.
This system allows emission levels to be monitored, and incentivizes participants to reduce their emission levels.
Critics, however, point out that there is no proof that carbon markets have reduced emissions levels. In particular they say there has been a glut of carbon credits available. With low prices, it is easier for polluters to buy credits than to change their ways.
Supporters point out that market dynamics have not yet kicked into gear. Although the cap starts high (mean that credits are plentiful), the cap is lowered each year. As emission levels drop, less credits will be available, and yet more credits will be needed to cover the additional excess. Over time, it is argued, participants will have no choice but to find ways of reducing pollution and investing in carbon reduction strategies.
The World Carbon market has started from essentially nothing to have become a major business.
Carbon trading has raised $14 billion in renewable energy investment in developing countries between 2002 and 2006. The global carbon trading market was worth an estimated $30 billion in 2006, a 200 per cent increase on 2005.
The European Union is currently responsible for over 80 per cent of the global market. As of mid 2007, it has driven approximately $13 billion in investments in 60 carbon funds, up from around $5 billion invested in 40 carbon funds at May 2006.
The PointCarbon.com “Carbon 2008” estimated that the world carbon market was worth $60 billion, and will grow a further 50 to 80 per cent in 2008. Traded carbon credits have grown 64 per cent from 1.6 gigatons to 2.7 gt.
Consensus forecasts are for carbon prices to reach $37 per ton by 2010 and $54 by 2020, with optimism that this will lead to a reduction in EU emissions during that period.
The EU carbon market, the European Union Emissions Trading Scheme (EU ETS) is expected to witness carbon credit shortgages by 2010, and this will lead to improvements in efficiency and increased usage of renewable energy sources.
Indeed, carbon prices will be key to the success of the EU ETS and of similar markets elsewhere in the world – or of a global carbon market. Europeans are increasingly expecting a global market to be formally created after the Kyoto Protocol lapses in 2012. They believe that the early signs of success are there, and that the learnings gained so far are applicable on a worldwide scale.
Until that time, there are a number of formal and semi-formal worldwide schemes active or soon to be launched.